Textures should be sized to 512x512 (driversuits) and 512x256 (helmets) before dds conversion. DXT1, no alphas required for either!

Driver suit mapping is exactly the same as 2010, the template's more developed however. Old suits should be 100% reusable as long as they're converted across to the new template. 

As stated, suits and helmets should all be DXT1 DDS files, named as usual (DriverNameDriver.dds, DriverNameHelmet.dds). 